Cita APA

Walls, C., & Breidenbach, R. (2005). Spring in action (2nd ed.). Dreamtech.

Chicago Edition Citation

Walls, Craig, i Ryan Breidenbach. Spring in Action. 2nd ed. New Delhi: Dreamtech, 2005.

Cita MLA

Walls, Craig, i Ryan Breidenbach. Spring in Action. 2nd ed. Dreamtech, 2005.